Zero-pressure chair
By designing a zero-pressure chair with fewer components and using motor drive to adjust the angle of the chair, the problems of large, heavy, difficult to adjust and poor shoulder adaptability of the existing technology chairs are solved, and lightweight, comfortable and adjustable Chair usage experience.
Patent Information
- Application Number
- CN202420278323.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-02-05
AI Technical Summary
The existing technology chairs are large and heavy, difficult to move, lack up and down adjustment functions, and poor shoulder adaptability, resulting in fatigue caused by sitting for a long time.
A zero-pressure chair is designed, with fewer components, including base, support plate, support slider set, hip frame, hip cushion, back bracket, leg bracket, etc., and the hip frame, back bracket and leg are driven by a motor The angle adjustment of the bracket achieves a comfortable sitting position.
The chair design with few parts, light weight and adjustable angles is realized, which improves the comfort and portability of use, reduces the center of gravity of the human body, and reduces musculoskeletal pressure.
Smart Images
Figure CN222425662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a chair, more specifically, to a zero-pressure chair. Background Art
[0002] The design of the zero-pressure chair is inspired by NASA's research on the neutral posture of astronauts in a zero-gravity environment. Because the human body in a zero-gravity environment tends to exhibit a specific "semi-lying position" when relaxed and without applying external force, it can minimize the body's need to resist gravity, thereby relieving musculoskeletal pressure and reducing pressure on the diaphragm and spine.
[0003] The following problems often occur when using the chairs of the prior art:
[0004] 1. It is large and heavy, and not easy to move. Since its frame is mainly made of steel, it is much heavier.
[0005] 2. The prior art chair cannot be adjusted. Another obvious disadvantage of the prior art chair is that it has no up and down adjustment function.
[0006] 3. The shoulder adaptability of the existing chairs is not particularly good, and sitting for a long time will still cause fatigue.
[0007] Therefore, it is necessary to propose a zero-pressure chair, which has the characteristics of few parts, light weight, adjustable angle and comfort. Utility Model Content
[0008] The technical problem to be solved by the utility model is to meet the requirements of chair angle adjustment and comfort by using fewer components.
[0009] In view of the deficiencies in the prior art, a zero-pressure chair is provided, comprising a base, a support plate being relatively mounted on the base, a support slider group being fixedly mounted on the support plate, a hip frame being slidably mounted on the support slider group, a hip cushion being fixedly mounted on the hip frame, the hip frame being rotatably connected to a back support and a leg support respectively, the back support being fixedly connected to a back assembly, the leg support being fixedly connected to a leg assembly, a hip motor being connected between the base and the hip frame, a back motor being connected between the back support and the hip frame, and a leg motor being connected between the leg support and the hip frame.
[0010] Furthermore, the supporting slider group includes at least two supporting sliders respectively, a sliding groove is opened inside the supporting slider, the hip frame is a rectangular frame, and two opposite circular arc tracks are fixedly arranged under the hip frame, and the circular arc tracks are placed in the sliding groove.
[0011] Furthermore, the back assembly includes a back frame and a back pad; the leg assembly includes a leg frame and a leg pad.
[0012] Furthermore, the base is fixedly connected to at least one armrest.
[0013] Furthermore, the base is fixedly connected to the chair legs.
[0014] Furthermore, the hip motor, back motor and leg motor are all linear motors, which can move telescopically along the axis of the motor push rod.
[0015] Furthermore, the leg support is a cross bar, and retractable folding rods are arranged on both sides of the cross bar, and the folding rods are fixedly connected to the leg frame.
[0016] Compared with the prior art, the utility model has the following beneficial effects: the zero-pressure chair provided by the utility model has a simple and clear rotation structure, few parts, simple and convenient installation, convenient replacement of parts, and light weight. In addition, the hip tilting of the utility model is achieved by the two arc tracks under the hip frame rotating in the four track sliders with the center position unchanged, which can not only keep the center of gravity from excessively moving backward when the user lies flat and leans back, but also lower the center of gravity of the human body, making the use process more comfortable, and the two arc tracks are very simple and convenient to rotate, and the weight is also lighter. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is an exploded view of the zero-pressure seat of the utility model;
[0018] Figure 2 This is a schematic diagram of the support slider structure of the zero-pressure seat of the utility model;
[0019] Figure 3 This is a schematic diagram of the zero-pressure seat of the present invention in use.
[0020] The accompanying drawings in the figure are marked as follows:
[0021] 1-base, 21-left support plate, 22-right support plate, 3-hip frame, 31-arc track, 32-hip cushion, 41-left support slider, 42-right support slider, 43-sliding groove, 5-leg bracket, 51-leg frame, 52-leg pad, 53-cross bar, 54-folding rod, 61-hip motor, 62-back motor, 63-leg motor, 7-back bracket, 71-back frame, 72-back pad, 8-armrest, 9-chair leg. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0023] See also Figure 1 and Figure 2 The zero-pressure chair provided by the utility model includes a base 1, on which chair legs 9 are installed. The chair legs 9 are fixedly installed at the four corners of the base to play a supporting role, and the chair legs can be at a certain angle to increase the support stability. Support plates are fixedly installed on both sides of the base 1, and the left support plate 22 and the right support plate 23 are relatively arranged, and support slider groups are installed on the support plates. The support slider group includes a left support slider 41 and a right support slider 42 with the same structure. The zero-pressure chair also includes a buttocks frame 3, which is a rectangular frame, and an arc track 31 is relatively fixedly arranged below the buttocks frame 3.
[0024] Taking the left support slider 41 as an example, a slide groove 43 is provided on the left support slider 41. The left and right support sliders are fixed on the support plate in a certain arrangement, and the slide groove 43 on the support slider fits the arc track 31, so that the hip frame 3 can be placed in the slide groove 43 and slide.
[0025] The buttocks frame 3 is rotatably connected to the back frame 7 and the leg frame 5, respectively, and a buttocks motor 61 is connected between the buttocks frame 3 and the base, a back motor 62 is connected between the back frame 7 and the buttocks frame 3, and a leg motor 63 is connected between the leg frame 5 and the buttocks frame 3. The buttocks motor 61, the back motor 62, and the leg motor 63 are all linear motors that move in a telescopic manner along the axial direction of the motor push rod. When the chair is in a normal sitting position, the buttocks motor 61 is extended to the maximum position, the back motor 62 is extended to the maximum position, and the leg motor 63 is shortened to the shortest position.
[0026] The back support 7 is fixedly connected to the back frame 71, and a back pad 72 is installed on the back frame 71. The leg support 5 is a cross bar, and telescopic rods 53 are arranged on both sides of the cross bar. The telescopic rods 53 are fixedly connected to the leg frame 51, and a leg pad 52 is installed on the leg frame 51.
[0027] See also Figure 3 When the hip motor 61 starts to shorten, the hip frame 3 is driven to tilt backward. When the back motor 62 starts to shorten, the back support 7 and the back pad 72 start to fall backward. When the leg motor 63 starts to extend, the leg support 5 and the leg pad start to push forward and upward, lifting the human calf.
[0028] The two arc tracks below the hip frame of the zero-pressure chair provided by the utility model rotate with the center position unchanged among four track sliders, which can not only keep the center of gravity from shifting too far backward when the user lies flat and leans back, but also lower the center of gravity of the human body, making the use process more comfortable, and the two arc tracks are very simple and convenient to rotate and are also lighter.
[0029] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.
Claims
1. A zero-pressure chair, characterized in that: The invention comprises a base (1), on which two support plates (21, 22) arranged opposite to each other are mounted, on which a support slider group is fixedly mounted, on which a hip frame (3) is slidably mounted, on which a hip cushion (32) is fixedly mounted, and the hip frame (3) is rotatably connected to a back frame (7) and a leg frame (5), respectively, the back frame (7) is fixedly connected to a back assembly, and the leg frame (5) is fixedly connected to a leg assembly, a hip motor (61) is connected between the base (1) and the hip frame (3), a back motor (62) is connected between the back frame (7) and the hip frame (3), and a leg motor (63) is connected between the leg frame (5) and the hip frame (3).
2. A zero-pressure chair according to claim 1, characterized in that: The support slider group comprises at least two support sliders (41, 42), each of the support sliders (41, 42) having a sliding groove (43) therein, the hip frame (3) being a rectangular frame, two circular arc tracks (31) arranged opposite to each other are fixedly provided below the hip frame (3), and the circular arc tracks are placed in the sliding groove (43).
3. The zero-pressure chair according to claim 1, characterized in that: The back assembly comprises a back frame (71) and a back pad (72); the leg assembly comprises a leg frame (51) and a leg pad (52).
4. The zero-pressure chair according to claim 1, characterized in that: The base (1) is fixedly connected to at least one armrest (8).
5. The zero-pressure chair according to claim 1, characterized in that: The base (1) is fixedly connected to the chair legs (9).
6. The zero-pressure chair according to claim 1, characterized in that: The hip motor (61), the back motor (62) and the leg motor (63) are all linear motors and can move telescopically along the axial direction of the motor push rod.
7. The zero-pressure chair according to claim 3, characterized in that: The leg support (5) is a cross bar, and telescopic folding rods (53) are arranged on both sides of the cross bar. The folding rods are fixedly connected to the leg frame (51).